diff --git a/configure.ac b/configure.ac
index a15859a..7e1c5b6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,7 +45,7 @@ NEED_LIBGCRYPT_VERSION=1.7.0
 
 
 AM_PATH_LIBGCRYPT("$NEED_LIBGCRYPT_API:$NEED_LIBGCRYPT_VERSION", gcrypt=1)
-AC_CHECK_DECLS([gcry_mpi_set_opaque_copy], [], [], [[#include <gcrypt.h>]])
+AC_CHECK_DECLS([gcry_mpi_ec_sub], [], [], [[#include <gcrypt.h>]])
 
 if test $gcrypt = 0
 then
diff --git a/test_brandt.c b/test_brandt.c
index d61700b..17f1d10 100644
--- a/test_brandt.c
+++ b/test_brandt.c
@@ -92,18 +92,6 @@ test_new_join ()
 }
 
 
-/*
-   static void
-   cleanup_auction_data ()
-   {
-    for (uint16_t i = 0; i < bidders; i++)
-    {
-    }
-    free (ad);
-   }
- */
-
-
 int
 main (int argc, char *argv[])
 {